Gate.



No. 663,378. Patented Dec. 4, I900.

W. S. WITTEN.

GATE.

(Application filed Jan. 10, 1900. Renewed Oct. 30, 1900.)

(No Model.) 2 Sheets-Sheet l.

' Patented Dec. 4, I900. W. S. WITTEN.

GATE.

(Application filed Jan. 10, 1900. Renewed Oct. 30, 1900.)

2 Sheets-Sheet 2,

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(No Model.)

wiltmeaoe o 2% ?6 a 1-? ai fi ilnrrnn Srn'rns ATENT IVILLIAM STANLEY WITTEN, OF CHICAGO, ILLINOIS.

SPECIFICATION forming part of Letters Patent No. 663,378, dated December 4, 1900.

Application filed January 10. 1900. Renewed October 80, 1900. Serial No. 34,946. (No model.)

T0 at whom it may concern:

Be it known that LWILLIAM STANLEY WIT- TEN, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois,have invented certain new and useful Improvements in Gates; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in theiart to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to new and useful improvements in gates, and especially to a selfopening gate adapted to work vertically in grooves in upright posts,suitable means being provided to release a catch provided to normally hold the gate closed, whereby as the catch is released the gate is hoisted by means of weighted members, which are connected to the gate through the medium of ropes passing over pulleys.

To these ends and to any others to which the invention may pertain, the same consists in the novel construction, combination, and adaptation of parts, as will be hereinafter more fully described and then specifically defined in the appended claim.

My invention is clearly illustrated in the accompanying drawings, which, with the letters of reference marked thereon, form a part of this application, and in which- Figure 1 is a side elevation of my improved self-opening gate. Fig. 2 is a vertical section on line 2 2 of Fig. 1, showing the manner of arrangement of ropes and pulleys. Fig. 3 is a horizontal section on line 3 3 of Fig. 1, showing the gate-locking device and connections thereto.

Reference now being had to the details of .the drawings by letter, A designates the vertically-sliding gate, which is guided in the grooves B of the vertical posts B. The upper ends of said posts are connected together by means of cross-beams C, between which are journaled on one end a pulley D and at the opposite end two pulleys E and E. Secured to the upwardly-projecting ends of the gate are the irons F. having eyes H H, in which the ends of the rope G are secured. Said rope after being fastened to an eye I-I passes up and over the pulley D, thence horizontally and over the pulley E, thence passes under the pulley K, journaled in the yoke K, and the rope then passes up and over the pulley E,th ence downward, and is secured to the eye H at the opposite end of the gate. To the lower end of said yoke K is secured a weight J, which is heavier than the gate, so that the weight will normally hold the gate at its highest limit or in an open position.

A gate-locking plate M is provided, which at one of its corners is pivoted to the upright post, as at M, and to his locking-plate may be secured a weight N in order to hold its inner lower corner over the upper end of the extension of the gate to prevent said gate from rising under the influence of the weight. If preferred, a spring may be substituted for the weight attached to the locking-plate, which spring would answer the purpose of returning the locking-plate to its normal position and taking up the slack of the ropes connected to said plate. Secured to said plate M are the two ropes Q, which pass up and over the two pulleys R, mounted at one end of the bracket S on the cross-piece S. One of these ropes passes to and over a pulley I, mounted on a bracket V on a distant post L, and has a knob I at its end. The second of said ropes Q passes over a second pulley R,thence to and overa pulley mounted on a post on the other side of the gate, and ends in a knob, as before described, whereby the gate-lock may be raised by a person approaching from either direction.

On the bracket-arm T, secured to one of the upright posts B, is a pulley T, over which a rope 0 passes, which rope is fastened at one end to the yoke K, carrying the weight J, while its other end passes over a pulley W, mounted on said bracket V, and ends in a knob O, secured to its end, whereby when it is desired to allow the gate to close the operator pulls down on the rope O, which causes the weight to be raised and the gate to fall by gravity into a closed relation. As the gate closes the locking-plate M automatically locks the gate closed. On the other side of the gate is a similarly-arranged rope O for operating the gate when approached from the opposite direction.

The operation of my invention has been sufliciently described, and it will be noted that owing to its simplicity of construction it is inexpensive,and a gate is produced which is easily and quickly operated and especially adapted for stock-yards and other purposes. Having thus described my invention, what I claim to be new, and desire to secure by Letters Patent, is-- Adropping gate in combination with the vertical posts having grooves in which said gate is guided, the rope secured at both ends of the gate and passing over suitable pulleys, a weighted yoke having a pulley at its upper end supported by said rope, a weighted plate M pivoted to one of said posts and normally resting with its inner lower corner against the top of the gate, a rope secured to the other edge of said plate, a lifting-rope attached to the weighted yoke, together with the necessary guide-pulleys for said ropes, all arranged substantially as described.

In testimony whereof I afiix my signature in presence of two witnesses.

WILLIAM STANLEY WITTEN.

Witnesses:

L. A. BELL, F. W. HOWELL. 

